Sound-box mounting for talking-machines.



A. A. HUSEBY.

SOUND BOX MOUNTING FOR TALKING MACHINES. APPLICATION FILED Nov.2l. ms.

Patented May 29, 1917.

PATENT OFFICE.

' ALBERT A. HUSEBY, or CHICAGO, ILLINOIsQ Application filed ovember To all whom it may concern Be it known that I, ALBERT HUsEBY, a citizen of the United States, residing at Chicago, in the-county of Cook and State of Illinois, have invented certain new and use ful Improvements in Sound-Box Mountings for Talking-Machines, of which the follow-.

ing is a specification.

This invention relates to the art of, talkingmachines, and has reference more particularly to an improved mounting, of the sound'box on the tone arm designed to afford a certain degree of universal flexibility between the sound box and the tone arm whereby to enable the stylus to follow the record-groove more accurately and faithfully, and prevent likelihood of the stylus jumping the groove, particularly at shallow spots in the latter.

My invention, its mode of operation, and the advantages'attending the same, will be readily understood by those familiar with herein shown as capable of turning on its this art upon'reference to the following detailed description, taken in connection with the accompanying drawing wherein I have illustrated a simple and practical embodiment of the invention, and wherein Figure 1 is an elevational view, partly 111* vertical section, of the sound box, the for ward portion of the tone arm, and my improved coupling or connection between the two; and

Fi 2 is a cross section on the correspondinghne of Fig. 1.

Referring to the drawing, 5 designates the sound box, 6 the stylus lever, and 7 the stylus, which parts may be of any known or approved construction. On the rear slde of the sound box 5 is a laterally extending shank 8 of tubular form in cross section, as

clearly shown in Fig. 2. 9 designates the inner end portion of the tone arm, which 18 longitudinal axis through an angle of ninety I Specification of Letters Patent.

SOUND-BOX MOUNTING ron rALxme-MAcnIi E s.

= PatentedM-ay 29, 1917.

27, 1916. Serial No. 133,568.

formed with :an annular flange 12 at the end thereof adjacent to the tone arm. The cou- .pling member 11 isprov'ided with an inter-*- 11 in the coupling member 11. The flange 1 12 of the coupling member is secured to the flange 10 of the tone arm preferably by means of a ring-shaped, thin-metal clamp 16 of L-shape in cross' section, which clamp fitsthe rear face and a portion of the peripheral edge of the flange 12, and a plurality of fastening screws 17 that are passed. through the clamp 16, the flange 12, and are tapped into the flange 10 ofthe tone arm. It should be noted that the outer edge of the clamp ring 16 is out of contact with the flange 10, a sufficient space being left between these parts to insure the maximum flexing of the rubber coupling-member required in service.

By reason of the fact that the rubber coupling-member is secured by independent means atrits opposite ends to the shank of the sound box and the face of the tone arm, respectively, said coupling member afl'ords suflicient play to the sound box and stylus lever, independently of the play aflorded by the tone arm, to insure the perfect tracking of the stylus with the oove of the rec- 0rd and a superior tone e ect. The lining sleeve 13 is slightly shorter than the body 11 of the flexible coupling-member, so as to be out of contact at its'ends with the back of the sound box and the face of the toneconstruction. and arrangement illustrated degrees to accommodate the use of a con-{and described vertible sound box, such as the sound box illustrated; but it should be understood that the present invention isnot l1m1ted to any special construction or style'of sound box.

The inner end or face of the tone arm 9 is provided with an annular flange 10. 11 des ignates the cylindrical body portlon of a universally flexible coupling-member between the shank 8 of the'sound box and the end of the tone arm 9. This coupling member 11 is preferably made of rubber and 1s I claim:

1. In a sound-box mounting for talking machines, the combination with a sound box having a laterally extending shank, and a tone arm formed with an annular flange, of an annular coupling member of rubber embracing said shank and formed with an annular flange, av fastening screw uniting said coupling member to said shank, a. ringshaped clamp fitting the inner face and a portion of the peripheral edge of the flange flange of the tone arm.

2. In a sound-box mounting for talking machines, the combination with a sound box having a laterally-extending shank, and. a

tone arm, of an annular coupling memberv of rubber, an internal lining of metal for saicl coupling member embracing said shank, means for securing said coupling member and its lining to saidshank, and independent means for securing said. coupling memher to the tone arm.

3. In a sound-box mounting for talking machines, the combination'with a sonnri lion having a-laterally extending shank, and a tone arm formed with an annular flange, of an annular coupling member 'of rubber formed With an'annular flange, an internal Z0 peripheral edge of the flange of said cou plin'g member, and fastening screws passing through said clamp, the flange of said 0011;; pling member,-an(l into the flange of the tone arm,

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